Transplant plug
CA 2092857 A1 · Owner: Agriculture Canada · Inventors: Brown, Daniel C. W.; Mcelroy, Arthur R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A transplant plug is described that uses in vitro somatic embryogenesis techniques to mass-multiply plants in a form suitable for direct transplanting. The plug contains potting media covered with an agar nutrient cap. Plants develop from single cells cell, clusters or young embryos derived from cell suspension callus tissue or explants placed on the cap and establish roots in the potting media.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed March 29, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 29, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.